Normally, we'd mark a rumor like this as just that, a rumor. Except, both parties - that would be "The Hobbit" director Peter Jackson, and "Doctor Who" star Matt Smith - are into the idea of bringing the two together. Speaking to The Waikato Times in New Zealand, Smith said:

"I think it would be an absolutely wonderful place to film Doctor Who. I’m told it’s glorious. I’m told it’s quite similar to England. Let’s get Peter Jackson to direct one and go and make it in New Zealand. I would love to, I will campaign endlessly to come over and film there. There’s clearly a great film industry out there. It’s something I would be very interested in, it’s just whether we can persuade the producers to fly us all over."

...Which sounds like the normal, "[INSERT LOCATION OF NEWS OUTLET I'M TALKING TO HERE] is great!" type interview answer, but the paper followed up with Jackson, who then said:

"I’m a huge Doctor Who fan, and I think Matt’s fantastic. Just name a time and place, and I’ll be there!"

Again, lest you think Jackson is just trying to look super cool or something, he's already cast Sylvester McCoy (the Seventh Doctor) in "The Hobbit," as well as Benedict Cumberbatch in dual roles in the trilogy. Cumberbatch, of course, works with "Who" Head Writer Steven Moffat on the BBC's "Sherlock," along with Jackson's Bilbo Martin Freeman.

So here, let's lay out a dream team for the 50th Anniversary of "Doctor Who," shall we?